saveAutoWakeup method
Implementation
Future<void> saveAutoWakeup(String did) async {
if (_deviceNodes.containsKey(did)) {
NodeClient client = _deviceNodes[did]!;
_autoWakeupMap[did] = {"ip": client.ip, "port": client.port};
SharedPreferences sp = await SharedPreferences.getInstance();
await sp.setString(shareKey, json.encode(_autoWakeupMap));
} else {
_autoWakeupMap[did] = {};
_requestNode(did);
}
}